Palindromi

#include <iostream>
#include <bits/stdc++.h>
using namespace std;
typedef long long unsigned int llu;
typedef unsigned int ui;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int n=0;
    string cache;
    cin >> cache;

    int len = cache.length()-1;
    for(int i=0; i<=len/2; i++) {
        if(cache[i]!=cache[len-i]) n++;
    }
    cout << n;
    return 0;
}

Test 1 (public)

Verdict: ACCEPTED

Test 2 (public)

Verdict: ACCEPTED

Test 3 (public)

Verdict: ACCEPTED

Test 4 (public)

Verdict: ACCEPTED

Test 5 (public)

Verdict: ACCEPTED

Test 6 (public)

Verdict: ACCEPTED

Test 7 (public)

Verdict: ACCEPTED

Test 8 (public)

Verdict: ACCEPTED

Test 9 (public)

Verdict: ACCEPTED

Test 10 (public)

Verdict: ACCEPTED